mirror of
https://github.com/sigmasternchen/mobmash.click
synced 2025-03-15 08:09:02 +00:00
feat: Basic migration system + initial migration
This commit is contained in:
overflowerror
parent
0b72962ce5
commit
1199023daf
5 changed files with 240 additions and 4 deletions
4
core.php
4
core.php
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@ -1 +1,5 @@
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<?php
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require_once __DIR__ . '/lib/migrate.php';
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migrate();
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@ -4,4 +4,4 @@ require_once __DIR__ . "/../credentials.php";
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$dsn = "pgsql:host=" . POSTGRES_HOST . ";dbname=" . POSTGRES_DBNAME . ";port=" . POSTGRES_PORT;
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$pdo = new PDO($dsn, POSTGRES_USER, POSTGRES_PASSWORD);
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$pdo = new PDO($dsn, POSTGRES_USER, POSTGRES_PASSWORD);
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117
lib/migrate.php
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117
lib/migrate.php
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@ -0,0 +1,117 @@
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<?php
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require_once __DIR__ . "/database.php";
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// variable because heredoc doesn't support consts
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$MIGRATION_TABLE = "mm_migrations";
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function ensureMigrationsTable(): void {
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global $pdo;
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global $MIGRATION_TABLE;
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if ($pdo->query(<<<EOF
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SELECT tablename FROM pg_tables
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WHERE schemaname = 'public' AND tablename = '${MIGRATION_TABLE}'
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EOF
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)->rowCount() != 0) {
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return;
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}
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$pdo->exec(<<<EOF
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CREATE TABLE IF NOT EXISTS $MIGRATION_TABLE (
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id INT NOT NULL,
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file VARCHAR(255) NOT NULL,
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applied TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP
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);
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EOF
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) !== false or die("unable to initialize migrations: " . $pdo->errorCode());
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}
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function getAllMigrations(): array {
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$files = scandir(__DIR__ . "/../migrations/");
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$files = array_values(array_filter($files, fn($f) => $f[0] != "."));
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sort($files);
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$migrations = [];
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foreach ($files as $file) {
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$delimiterPos = strpos($file, "_");
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$migrations[intval(substr($file, 0, $delimiterPos))] = $file;
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}
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return $migrations;
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}
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function getAppliedMigrations(): array {
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global $pdo;
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global $MIGRATION_TABLE;
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$result = $pdo->query(<<<EOF
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SELECT * FROM ${MIGRATION_TABLE}
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EOF);
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$migrations = [];
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foreach ($result->fetchAll() as $row) {
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$migrations[$row["id"]] = $row["file"];
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}
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return $migrations;
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}
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function getMigrationsToApply(): array {
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global $pdo;
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$all = getAllMigrations();
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$applied = getAppliedMigrations();
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foreach ($applied as $id => $file) {
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unset($all[$id]);
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}
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return $all;
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}
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function executeSqlScript(string $sql, string $file) {
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global $pdo;
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if ($pdo->exec($sql) === false) {
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die("failed to apply migration " . $file . ": " . $pdo->errorCode());
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}
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}
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function applyMigration(int $id, string $file) {
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global $pdo;
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global $MIGRATION_TABLE;
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$pdo->beginTransaction();
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$sql = file_get_contents(__DIR__ . "/../migrations/" . $file);
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if (!$sql) {
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die("Unable to read migration file: " . $file);
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}
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executeSqlScript($sql, $file);
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$statement = $pdo->prepare(<<<EOF
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INSERT INTO ${MIGRATION_TABLE}
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(id, file) VALUES
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(?, ?)
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EOF);
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$statement->execute([$id, $file]);
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try {
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$pdo->commit();
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} catch (PDOException $e) {
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// this might happen if the migration script contains a DDL statement
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// -> ignore
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}
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}
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function migrate() {
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ensureMigrationsTable();
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$migrations = getMigrationsToApply();
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foreach ($migrations as $id => $file) {
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applyMigration($id, $file);
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}
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}
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@ -98,14 +98,14 @@ function downloadImage(string $url, string $mobname): string {
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function addOrUpdateMob(string $name, string $filename) {
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global $pdo;
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$query = $pdo->prepare("SELECT name from mobs where name = ?");
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$query = $pdo->prepare("SELECT name from mm_mobs where name = ?");
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$query->execute([$name]) or die("unable to check if mob exists");
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if ($query->rowCount() == 0) {
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$query = $pdo->prepare("INSERT INTO mobs (name, image) VALUES (?, ?)");
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$query = $pdo->prepare("INSERT INTO mm_mobs (name, image) VALUES (?, ?)");
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$query->execute([$name, $filename]) or die("unable to add new mob");
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echo " added\n";
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} else {
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$query = $pdo->prepare("UPDATE mobs SET image = ? WHERE name = ?");
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$query = $pdo->prepare("UPDATE mm_mobs SET image = ? WHERE name = ?");
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$query->execute([$filename, $name]) or die("unable to update mob");
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echo " updated\n";
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}
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115
migrations/0001_mobsMatchesAndRating.sql
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115
migrations/0001_mobsMatchesAndRating.sql
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@ -0,0 +1,115 @@
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create table mm_mobs
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(
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id serial
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constraint mobs_pk
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primary key,
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name varchar(255) not null,
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image varchar(255) not null,
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created timestamp default CURRENT_TIMESTAMP not null,
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enabled boolean default true not null
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);
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create table mm_matches
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(
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id bigserial,
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mob1fk integer not null
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constraint matches_mob1_fk
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references mm_mobs,
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mob2fk integer not null
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constraint matches_mob2_fk
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references mm_mobs,
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created timestamp default CURRENT_TIMESTAMP not null,
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winner integer not null,
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session varchar(255)
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);
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CREATE VIEW mm_matches_of_mob(id, mob, opponent, won, created) AS
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SELECT mm_matches.id,
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mm_matches.mob1fk AS mob,
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mm_matches.mob2fk AS opponent,
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mm_matches.winner = 1 AS won,
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mm_matches.created
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FROM mm_matches
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UNION
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SELECT mm_matches.id,
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mm_matches.mob2fk AS mob,
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mm_matches.mob1fk AS opponent,
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mm_matches.winner = 2 AS won,
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mm_matches.created
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FROM mm_matches;
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CREATE VIEW mm_rating(mob, rating, last_update) AS
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WITH RECURSIVE rating(mob, rating, last_update) AS (
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SELECT mm_mobs.id AS mob,
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1500.0 AS rating,
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0::bigint AS last_update
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FROM mm_mobs
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UNION
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SELECT expectation.mob,
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expectation.own_rating + 32::numeric * (
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CASE
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WHEN expectation.won THEN 1
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ELSE 0
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END::numeric - expectation.expectation) AS rating,
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expectation.id AS last_update
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FROM (
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WITH newest_rating(mob, rating, last_update) AS (
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SELECT
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rating_with_row_number.mob,
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rating_with_row_number.rating,
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rating_with_row_number.last_update,
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rating_with_row_number.row_number
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FROM (
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SELECT rating_for_row_number.mob,
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rating_for_row_number.rating,
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rating_for_row_number.last_update,
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row_number()
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OVER (
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PARTITION BY rating_for_row_number.mob
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ORDER BY rating_for_row_number.last_update DESC
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) AS row_number
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FROM rating rating_for_row_number
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) rating_with_row_number
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WHERE rating_with_row_number.row_number = 1)
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SELECT
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next_match.id,
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mm_matches_of_mob.mob,
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mm_matches_of_mob.won,
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own_rating.rating AS own_rating,
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opponent_rating.rating AS opponent_rating,
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(1::numeric /
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(
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1::numeric +
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power(
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10::numeric,
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(
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opponent_rating.rating - own_rating.rating
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) / 400::numeric
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)
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)
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) AS expectation
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FROM (
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SELECT
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min(matches_for_next_match.id) AS id,
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matches_for_next_match.mob
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FROM mm_matches_of_mob matches_for_next_match
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JOIN newest_rating own_rating_1
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ON matches_for_next_match.mob = own_rating_1.mob
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WHERE matches_for_next_match.id > own_rating_1.last_update
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GROUP BY matches_for_next_match.mob
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) next_match
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JOIN mm_matches_of_mob
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ON next_match.id = mm_matches_of_mob.id AND
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next_match.mob = mm_matches_of_mob.mob
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JOIN newest_rating own_rating
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ON mm_matches_of_mob.mob = own_rating.mob
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JOIN newest_rating opponent_rating
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ON mm_matches_of_mob.opponent = opponent_rating.mob
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) expectation
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)
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SELECT mob,
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rating,
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last_update
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FROM rating;
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